Hi Kayleigh. The same thing happened to Martin but with a small lump on the side of the neck. He went back to the doctor a second time and asked for a biopsy. So he was referred, it was quick, a couple of weekes I think. The doctor said :well I am sure it's nothing, but just for your piece of mind..." . So tell them you are concerned and why and ask for a biopsy. Good luck, and don't let them fob you off that's not urgent!